Objective To explore the application value of MR diffusion weighted imaging (DWI) and CT enhancement scan in classification diagnosis of liver cirrhosis. Methods Forty five patients with cirrhosis admitted and treated in the Hospital from January 2013 to January 2015 were selected as research object, all patients were graded in accordance with Child, DWI and CT enhancement scan examinations were applied, apparent diffusion coefficient (ADC) and CT scan results with different b values (200,500,800s/ mm2 ) were observed. Results The comparisons in ADC values between different liver cirrhosis Child classification groups satisfied P＜0.05 when b was denoted to be 200,500s/ mm2 , and the comparisons in ADC values between different liver cirrhosis Child classification groups satisfied P＞0.05 when b was denoted to be b=800s/mm2 ; The pairwise comparisons in different Child inter-classifications with liver cirrhosis satisfied P ＜0.05 when b equaled to be 500s/mm2 . The positive rate of double arterial enhancement scanning lesion was 92.86%, and such value of single arterial enhancement scanning lesion was 86.11%. Conclusions DWI delivers better diagnostic value in the in diagnostic classification of cirrhosis, and it can be used as ideal examinations means for diagnosis classification of cirrhosis. And CT enhancement scan can improve the detection rate of small hepatocellular carcinoma, but such technique imposes radiation effect on the bodies of patients, therefore, appropriate scanning modes should be selected based on clinical purpose.